You will be given a definition of a task first, then some input of the task.
In this task, you will be presented with a question and you have to answer the question based on your knowledge. Your answers should be as short as possible.

What is the molecular weight of the enzyme composed of 402 amino acids isolated from the Gram-negative , facultative anaerobic , rod-shaped , coliform bacterium ?
Output:
45.2 kDa